Solution: If the tool wears or is not sharp after damage, re-sharpening or selecting a better tool to re-set the knife; the machine generates resonance or unstable placement, adjust the level, lay the foundation, fixed and stable; the reason for mechanical creep is towing The board guide rail wears badly and the screw ball is worn or loose. The machine tool should pay attention to maintenance. The wire should be cleaned after work and lubricating oil should be added in time to reduce friction. The coolant that is suitable for workpiece processing can be selected to meet the requirements of other processes. In the case, try to use a higher spindle speed.
2, the workpiece produces a taper head phenomenon failure causes: the level of the machine has not been adjusted, a high and low, resulting in unsteady placement; turning the long axis, the contribution of materials is relatively hard, deep knife tool, resulting in knife phenomenon; Tailstock ejector and spindle are not the same.
Solution: Use a level meter to adjust the level of the machine, lay a solid foundation, and fix the machine to improve its toughness; choose a reasonable process and appropriate cutting feed to avoid the tool being forced by the knife; adjust the tailstock.
3, the driver phase lamp is normal, and the workpiece size is processed when the large and small faults cause: the machine tool carriage long-term high-speed operation, resulting in screw and bearing wear; knife holder repeat positioning accuracy in the long-term use of deviation; The second time can accurately return to the starting point of the machining, but the size of the machined workpiece still changes. This phenomenon is generally caused by the spindle. The high-speed rotation of the spindle causes the bearing to be worn out, resulting in a change in the machining dimensions. Metal processing WeChat, content is good, worthy of attention.
Solution: Use the dial indicator to rest on the bottom of the knife holder, edit a fixed cycle program at the same time, check the repeat positioning accuracy of the carriage, adjust the screw clearance, and replace the bearings; check the repeater positioning accuracy with the dial indicator. Adjust the machine or replace the tool holder; use the dial indicator to check whether the machining workpiece is accurately returned to the starting point of the program. If it can, repair the spindle and replace the bearing.
As long as it is confirmed which parts of the high-speed CNC lathes are damaged or damaged, we can solve the problems with the next step. After these steps can basically find the problem.
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